"Everything is temporary," said the letters on Andre 3000's jumpsuit, the MC entering Sasquatch's main stage like an existential astronaut. The message, alongside a double-sided "sold out/for sale" sign at his hip that spoke to OutKast's festival-circuit payday, felt like a warning: this reunion won't last forever. But 3000's smile was bigger than any ambivalence.

Playing essentially the same set they've begun taking across America, the version with "Hey Ya!" in the middle instead of left for desert, there were no hints of the awkwardness some saw in the hip-hop duo's Coachella performance in April: just urgency. While both men are no doubt happy to collect their headlining cheddar, on Saturday night, their performance was about legacy. They appeared within a cube with black-and-white projections of the American flag, evoking their "Stankonia" cover art, and their banter guided the crowd between songs as the set pivoted from hits to deep cuts, remembering the days they rehearsed rap verses around the kitchen table and crowing over OutKast's eternal coolness before "So Fresh, So Clean."

It felt like watching old friends, whatever distance is between them bridged out of respect for what they'd built. The house of OutKast is a mighty one: with help from a band that included a horn section, backing singers and the occasional presence of collaborator Sleepy Brown, they marathoned through "B.O.B.," "Roses," "Aquemini," "Ms. Jackson," "Hootie Hoo," "The Way You Move" and more music undeniable enough to fill in the younger crowd's knowledge gaps. "What's cooler than being cool?" 3000 asked in "Hey Ya!" "Ice cold!" roared back at him: "Being remembered" has too many syllables.